Typical Development and Grounded Cognition Flashcards
why do children have temporary decreased flexibility during growth spurts
bone growth outpaces changes in muscle length
where are children/adolescents more susceptive to injury
epiphysis and apophysis
T or F: we are born with typical spinal curves
F: they develop over time as infants gain control and experience in different positions
order spinal curvatures as they develop
cervical lordosis >
thoracic kyphosis >
lumbar lordosis
what happens to the acetabulum when children start to weight bear and walk
it rotates to the forward inclination position and cups around the femoral head
what happens to the acetabulum if there is limited WB
it stays in a more vertical position which makes dislocations more common
what happens at the femur to WB (2)
femoral angle of inclination decreases (better hip abduction)
femur becomes less anteverted
what happens at the ttibia with WB
it goes from initial internal torsion to external torsion
the femur tibia are in genu ____ at birth and then have max genu ____ at 3 years before decreasing to adult values
varus
valgum
T or F: the calcaneus and forefoot are initially in valgum
F: varus
forefoot varus may persist until __ years
2
after birth, growth in muscles is mainly due to…
increase in size of fibers
do children <15 years have more slow twitch or fast twitch fibers
slow - needed for postural control
what is disturbed if muscle does not add enough sarcomeres to keep up with skeletal growth
length- tension curve
linear increase in strength accelerates for ___ after puberty. why
males - hormones and differences in physical activity
is the greatest difference in strength between males and females in upper or lower body
upper
T or F: you can create new neurons after birth
F: but you can build more connections
as you get older BP ______. why
increases because arteries get thicker
as you get older HR and RR ________
decreases
physiological flexion (position at each joint?)
shoulder:adduction
elbow: flex
hand:flex, pronation
spine:flex c-curve
hip:flexion, abduction, ER
knee: flex
ankle: DF
newborn - 1mth how is head control
lack head control and head is to one side
what happens when you bring a baby less than 1 month into extension
they spring back like a rubberband into flexion
abasia - what is it? what age?
no longer having stepping response - 2 months
typically, what age do movements become smooth and symmetrical
3 months